Gas cock



Dec. 11,1923. 1,477,133

A r a. LANGE GAS cocx Filed March 25 1922 GOTFTLIEB LARGE, or Deanne,

GAS COCK.

Application filed March 25, 1922. Serial 1%. 546,578.

To all whom. it may concern:

Be it known that I, Go rrmnB'LANon. a v citizen of the United States, residin at Dallas, in the county of Dallas and tate of Texas, have invented certain new and useful Improvements in Gas Cocks, of which the following is a s ecification. v This invention 1 ates to new and useful improvements in gas cocks. The object of the invention is to provide a safety appliance for a gas'cook such as is used on gas ranges, stoves and heaters-involvin a locking means which must be releasedhefore the handle can be swung or the valve turned to permit the passage of gas thru the cock. Such-an arrangement is particularly useful where there are small children and is also advantageous in making a testas to whether or not the cock is open and the gas escaping. It will be seen'that if the gas cock is 0 en, the valve may .be easily turned,'but i it is closed the lock must be released before said valve can be turned.

A particular feature isto provide a releasing plunger in a convenient position to be readily engaged'by the thumb of the person operating the gas cock, whereby a natural and simple operation may'behad. A fur- $9 ther object of the invention is to employ the locking device as stop for limiting the turning movement of the valve in opening and closing the cock.

v A construction designed to carry out the invention will be hereinafter described together with other features of the invention. The invention will be more readily understood from a reading of the following specifi'cation and by reference. to the accompanyto ing drawings, in which an example of th invention is shown and wherein:

Fig. 1 is a: side elevation of a gascock constructed in accordance with my invention, and showing the same in its open posi-.

tion,

Fig. 2 is a similar view with the valve in its closed position, I Fig. 3 1s an enlar ed vertical sectional view of a portion of t e gas cook and taken on the lines 8-3 of Fi 2, and

Fig. 4: is a horizonta cross sectional view on the lines 4-4 of Fig. 3.

In the drawings the numeral 10 designates the bod of an ordinary gas cook having a at screw t readed nipple 11, mounted-on one side and the usual spud 12 or other-gas,

burner connection on the other side. It is to be understood that the nipple 11 mayeither be screw threaded or arran dfto be connected with a rubber hose. heusualtapered valve 13 is mounted in the b0 and held in its seat by the spring 14 an lock nut 15.. The stem 16 of the valve extends above the body and terminates in the usual head '17 which has a socket 18 in one sidev for receiving the handle 19. The handle19 is held in place by-a screw 20 passing there thru and having screw threaded engagement in-the head of the stem. The parts just described form the structure of an ordinary t gas cock to which my invention may be applied. Y

In applying my invention I cut avertical slot 21 transversely thru the valve stem and mount therein a latch lever 22 which is pivoted to one side of the center of the stem. To the underside of thelever at one end I attach a fiat spring22 which is bowed so as to rest on the bottom of the slot and force the long end Of thQal'GVBI' upwardly. short end of the lever is adapted to enga e in a notch 23 in the rim of the housing. 0 long as the lever is-in en agement'with this notch, the valve cannot e turned A ver tical plunger 24 is mounted in the valvestem on the opposite side of the center from the pivot of. the, lever latch, andhas its lower end slightly bent so as to rest on the long end of the latch. The plunger extends above the head 17 and carries acap 25 on its upper end. By applying pressure on the cap the piungeris moved downwardly so as to depress the latch against. the tensionof the sprin 22 and swing it out of the notch 23 where y. the stem and valve me. be turned by swingin the handle 19. To imit the movement of t e plunger 24,11 slot 261s provided in one side thereof and the screw 7 20 is made long enough to enter said slot whereby the shoulders at each end would engage said screw and limitthe movement as described.

The rim of the body is provided with shoulders 27 and 28 respectively, and is cut down between said shoulders. The long end of the latch lever swi over the rim between these shoulders. en the latch is resting in the slot 23, it\is in engagement with the shoulder 27', andthe valve is closed. This shoulder acts to arrest the latch no The at swung to its limit the turning movement of the-valveenclosed in the same. "When the valve is 22 is tilted so that its short endis lifted out of the notch 23, whereby the handle 11 may freely swung to open the cock. While the cock is in its open position the short end of the latch rests upon the rim of the body, so that when the handle is swung to close the cock, said latch readily drops into the notch 23 and locks the cock as is obvious. It will seen that the handle 19 cannot be acciently swung to openthe cock and also that; unless the plunger is depressed the handle cannot be swung so that small children cannot readily operate the gas cook.

Various changes in the size and construction of the parts as well as modifications,

open position the latch will may be made without departing from the spirit of the invention. Q I

What I claim is: In a safety gas cook, the abody, a rim provided shoulders and on the 0 on one side with posite sidei with a notch, a rotatable valve in the body, a stem combination of I extending from the valvea'bovethe body and having a transverse; slot through, a latch extending and projecting on opposite extending therethrough the slot sides of the stem,

one end of the'latch engaging in the notch and the other end of the latch lying-between the shoulders, the latch being pivoted in the slotnearer one side 'ofthe stem, a vertical plunger in the stem having its lower end projecting'into the it is retained against upward disp the bent end'of the plunger bearing on the shoulder-end of the latch away pivot, and a supporting spring under the end of the latch lying between the shoulders. In testimony whereof I afiix my signature.

'GQTTLIEB LANGE.

lacement;

slot and bent, whereby a from the 

